carb flooding

[powderkey2]

I'm looking at 89 accord for sale with 77K miles...a very nice car but the owner says it floods after the car has warmed up...

Anyone ever heard of this sympton? Causes?

thanks,
Chris

[A20A1]

will if they smell a lot of gas then it probably is floodin... i could be caused by the choke not opening or a leaky or bad adjustment of the float.

[powderkey2]

well..I got to look at the engine during lunch break...actually the car has 73K miles and the fellow only wants $750 for it...

There was a remanuf. carb put on 12/03 and the mechanic said it went bad...????

I think I may just have to take a chance on this car...hope I can straighten out the fuel problem when I get it home.

[A20A1]

If you want help rebuilding the carb or looking for exterior problems that effect the carb then this is the forum to search thru.

https://www.3geez.com/showthread.php?t=5350

that is the link to the carb rebuild how-to... I'd say look for external problems before rebuilding a 2 year old carb.

I wonder if the bottom gasket that sits under the carb is leaking... since coolant can seep past the gasket when the car heats up and then it get sucked into the motor. I'd be careful of running the car anymore if that was the case untill the coolant leak was fixed.

$750 isn't bad... I got a DX with high miles for $500.

[powderkey2]

The fellow that owns the car said that his son was tooling down the freeway and that the car started sputtering. But by the time his dad got there it was cooled off and started just fine...the dad had a remanf carb put on to the tune of $600...saw the receipt...yikes...

The carb was really out of sync when I fired it up this afternoon for the first time. It didn't have the air cleaner on it so I'm sure there massive vacum leaks were happening...lol. When I clicked on the AC it did seem to level out abit...

Any one know a good Honda mechanic in Nashville TN?

[A20A1]

Yeah you probably did have a vacuum leak
https://www.3geez.com/showpost.php?p=451947&postcount=1
that should help you tune the carb with the air cleaner reomved.

[powderkey2]

thanks for the info...if sure that will be handy in this project.

[ephebert]

My 89 LX was having an issue with a low idle after it reached operating temp. I found the problem today and replaced the part. No more idle issues. I thought for a long time it was an air/fuel issue but it turned out that when the car was in idle it was getting flooded.

The Chilton Manual called it a ThermoValve. It's on the right side of the carb, on mine the fuel line hooked into the bottom opening. The check is to start with a cold engine and if the line to the bottom does not hold pressure to replace it. Mine didn't. I oredered my part online and they didn't call it a thermovalve but a diaphram valve. The part they call a thermovalve is a T connector.

Give that a shot.... it took me 6 months of troubleshooting to find my problem. Good Luck!

[A20A1]

Yeah the thermovalve runs into the choke operations so that'll cause you to run rich if it doesn't pull open the choke.

[POS carb]

i had the same problem, it seems every time I had the carb out of the engine and let it move around too much it would just flood itself for no reason and I would get frustrated and just swap the carb